From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A987120B810; Fri, 27 Mar 2026 13:25:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774617905; cv=none; b=iiA2bZaDGHCi3Ep7iNbR9O/JW1P97dCyrwYII9kD/LO3Vb/BPIgwN+b5acuBCZOv8APMVj99b+J8YkznaYMHzGYEcbvcoPk0TTsuMqEBzcaAa1jn/51Aq3pefPVC0cH3ohGIx4/6a+d862MzWa0tIP1bqcK4PKpNxY2pV+PrO4M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774617905; c=relaxed/simple; bh=brXvhwyCKp5XwYJwondkNZofipJVw6dyyhnaVceck5I=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=baf8MNINXYtebE6td44AqS1w0GA3DFyE9EFzwLs0EPySpX3R+xnsx22RxZJBPkpcvqYOILNAmnHxRhlPi/3NQeXamJhS1ra/U5eK36faJ2gpOYitl7OQxXSKhwlr5HXU3hKuYk5HEtffJPUic7g1S81Z6csVKk5XRgiGjovyvAY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=HsriDbNK; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="HsriDbNK" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7E4DEC2BC87; Fri, 27 Mar 2026 13:25:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774617905; bh=brXvhwyCKp5XwYJwondkNZofipJVw6dyyhnaVceck5I=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=HsriDbNKQQIc9uLqKb3o3lGxNyauWEo1fFT0hzLpKbTb5nTniA1YcveZi7m5zizlf cqaSPiPne+kjrO0ePUeOhaYrmIVOTVVaMmqtDlpQFaaaLCYnD2Y0HtFqRGhqORFh3M +PafWd9fkkR7YtOnWOlqa1wmvmVRW9A8ysAi+in6csCEs/tw+tiKMYb930rZy4krrz JMpvZ2cGCS2cFZ+nR+KFq52hJjdPq4vhAnxfsDbnf80AxKbPC9RH0duuydCsxD4vcf W4oW1ac0IdcMzsiPfcM1+tjLTd9QS4yj5fzkTDdoRAcyZqV8+GgzPhGTYxzaNQdqZY 6qqWH9RCEnU+g== Message-ID: Date: Fri, 27 Mar 2026 14:24:58 +0100 Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v6 0/6] selftests/mm: skip several tests when thp is not available To: Andrew Morton , Chunyu Hu Cc: shuah@kernel.org, linux-mm@kvack.org, ljs@kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com, vbabka@suse.cz, rppt@kernel.org, surenb@google.com, mhocko@suse.com, ziy@nvidia.com, baolin.wang@linux.alibaba.com, npache@redhat.com, ryan.roberts@arm.com, dev.jain@arm.com, baohua@kernel.org, lance.yang@linux.dev References: <20260324013316.2590422-1-chuhu@redhat.com> <20260324090927.eeacb7987d22ed8ba13fada2@linux-foundation.org> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 3/24/26 17:09, Andrew Morton wrote: > On Tue, 24 Mar 2026 09:33:10 +0800 Chunyu Hu wrote: > >> There are several tests requires transprarent hugepages, when run on thp >> disabled kernel such as realtime kernel, there will be false negative. >> Mark those tests as skip when thp is not available. > > Thanks, I updated mm.git's mm-unstable branch to this version. > >> Chagnes in v6: >> - patch 3 add reviewed-by from Lorenzo >> - patch 4 handle the errno before and after close(), suggested by AI > > Here's how v6 altered mm.git: > > > tools/testing/selftests/mm/vm_util.c | 12 ++++++++++-- > 1 file changed, 10 insertions(+), 2 deletions(-) > > --- a/tools/testing/selftests/mm/vm_util.c~b > +++ a/tools/testing/selftests/mm/vm_util.c > @@ -785,15 +785,23 @@ int unpoison_memory(unsigned long pfn) > > void write_file(const char *path, const char *buf, size_t buflen) > { > - int fd; > + int fd, saved_errno; > ssize_t numwritten; Empty line? :) > + if (buflen < 1) > + ksft_exit_fail_msg("Incorrect buffer len: %zu\n", buflen); -- Cheers, David